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Finding the Fourth Proportional to 340,056.21, 510,112.89 and 103,400.94

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Solution

The fourth proportional to 340,056.21, 510,112.89 and 103,400.94 is: 155,110.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,056.21 : 510,112.89 = 103,400.94 : x
  2. Step 2: Convert to fraction form
    340,056.21/510,112.89 = 103,400.94/x
  3. Step 3: Cross multiply
    340,056.21x = 510,112.89 × 103,400.94
  4. Step 4: Simplify right side
    340,056.21x = 52,746,152,332.12
  5. Step 5: Solve for x
    x = 52,746,152,332.12/340,056.21
  6. Step 6: Final answer
    x = 155,110.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.